Now, to george zimmerman back in the headlines. A free man after the not guilty verdict in the killing of trayvon martin. He was found speeding with a gun in his car. It was caught on dash cam. Matt gutman has the story. Reporter: This is the second time in two weeks he's made headli headlines. This time, driving cross country with a gun in his glove box. This morning, the newly released police dash cam video shows george zimmerman's truck, just moments after he was pulled over for speeding down a texas highway sunday. White male. Last name, zimmerman. The first thing the former neighborhood watchman tells the officer, is that he has a gun in his glove box. Item and shut your glove compartment. Reporter: The officer speaking to him through an open window, asks him where he's going. Where are you headed this evening? Nowhere in particular. Nowhere in particular? Why do you say that? Reporter: The infamous 29-year-old then seemed surprise that the officer didn't recognize him. You didn't see my name? Huh-uh. What a coincidence. Reporter: Zimmerman's attorney says his client's on a road trip. And has no particular destination. In the video, it appears that zimmerman is traveling alone. A far cry from a few weeks earlier. His family and attorney say he was living in hiding and wearing a bullet-proof vest. I'm sure he's capable and should be carrying a firearm. Now, more than ever, there's people who are actively angry against him. Reporter: On july 17th, just four days after his acquittal in the killing of 17-year-old trayvon martin, zimmerman was also driving alone, just a mile from the site of a shooting, where he pulled over at an accident scene. That time, florida sheriff's deputies say he helped rescue a family of four from an overturned vehicle. On monday, he got different police attention. I'll cut you loose with a warning. Reporter: That gun is not the same gun he used to shoot trayvon martin. And it is legal for him to drive all the way through texas and into arizona with that gun. It is not legal for him to bring it into california. Perhaps that's where his road trip ends and he heads back to florida. After all that, no ticket.

This transcript has been automatically generated and may not be 100% accurate.

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